12667240 has 16 divisors (see below), whose sum is σ = 28501380. Its totient is φ = 5066880.

The previous prime is 12667223. The next prime is 12667253. The reversal of 12667240 is 4276621.

It can be written as a sum of positive squares in 2 ways, for example, as 12489156 + 178084 = 3534^2 + 422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12667199 and 12667208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158301 + ... + 158380.

Almost surely, 2^12667240 is an apocalyptic number.

12667240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12667240 is an abundant number, since it is smaller than the sum of its proper divisors (15834140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12667240 is a wasteful number, since it uses less digits than its factorization.

12667240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316692 (or 316688 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 12667240 is about 3559.1066294788. The cubic root of 12667240 is about 233.1098722296.

The spelling of 12667240 in words is "twelve million, six hundred sixty-seven thousand, two hundred forty".